Toyota Sieena awd vs Toyota Yaris: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Toyota Sieena awd
67%
MOT pass rate · 1 vehicles
Toyota Yaris
78%
MOT pass rate · 631,425 vehicles
Verdict: On MOT pass rate the Toyota Sieena awd (67%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Toyota Sieena awd | Toyota Yaris |
|---|---|---|
| MOT pass rate | 67% | 78% ✓ |
| MOT failure rate | 33% | 22% ✓ |
| Faults & advisories per test | 2.5 | 1.7 ✓ |
| Dangerous-fault share | 0% ✓ | 2% |
| Average mileage | 88,914 mi | 85,387 mi |
| Sample size (vehicles) | 1 | 631,425 |
Most common faults
Toyota Sieena awd
- Child seats fitted
- Nearside Rear Child Seat fitted not allowing full inspection of adult belt
- Offside Rear Child Seat fitted not allowing full inspection of adult belt
- Brake hydraulic reservoir cap missing (3.6.G.1a)
- Front Tyre worn close to the legal limit both are smooth on their edges,and on limit (4.1.E.1)
- Item removed from driver's view .
Toyota Yaris
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
Reliability FAQ
On MOT pass rate the Toyota Sieena awd (67%) and Toyota Yaris (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Toyota Sieena awd report Full Toyota Yaris report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.